package com.ruoyi.web.controller.system;

import java.util.List;
import java.util.Locale;
import java.util.Set;

import com.ruoyi.common.utils.MessageUtils;
import com.ruoyi.common.utils.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.core.domain.entity.SysMenu;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.LoginBody;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.framework.web.service.SysLoginService;
import com.ruoyi.framework.web.service.SysPermissionService;
import com.ruoyi.system.service.ISysMenuService;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.servlet.LocaleResolver;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 登录验证
 *
 * @author ruoyi
 */
@RestController
public class SysLoginController {
    private static final Logger logger = LoggerFactory.getLogger("SysLoginController");
    @Autowired
    private SysLoginService loginService;

    @Autowired
    private ISysMenuService menuService;

    @Autowired
    private SysPermissionService permissionService;

    @Autowired
    LocaleResolver localeResolver;

    /**
     * zd
     * 新增修改后台整体默认语言方法
     *
     * @param lang
     * @return
     */
    @GetMapping("/changeLanguage")
    public AjaxResult changeLanguage(String lang) {
        if (StringUtils.isEmpty(lang)) {
            return AjaxResult.error("语言参数不能为空!");
        }
        ServletRequestAttributes sra = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = sra.getRequest();
        HttpServletResponse response = sra.getResponse();
        Locale locale = new Locale(lang);
        localeResolver.setLocale(request, response, locale);
        String message = MessageUtils.message("not.null");
        logger.info(message);
        return AjaxResult.success(LocaleContextHolder.getLocale());
    }


    /**
     * zd
     * 检查后台整体默认语言设置
     *
     * @return
     */
    @GetMapping("/getDefaultSystemLanguage")
    public AjaxResult changeLanguage() {
        String message = MessageUtils.message("not.null");
        if (StringUtils.isEmpty(message)) {
            return AjaxResult.error("获取i18n文件内容失败");
        }
        logger.info(message);
        return AjaxResult.success(LocaleContextHolder.getLocale());
    }


    /**
     * zd
     * 检查后台整体默认语言设置
     *
     * @return
     */
    @GetMapping("/getOtherSystemLanguageTest")
    public AjaxResult getOtherSystemLanguage(String lang) {
        if (StringUtils.isEmpty(lang)) {
            return AjaxResult.error("要获取的语言环境编码不能为空");
        }
        String message = MessageUtils.messageByLocale("not.null", lang);
        if (StringUtils.isEmpty(lang)) {
            return AjaxResult.error("not.null 对应的i18n文件内容不能为空");
        }
        return AjaxResult.success(message);
    }


    /**
     * 登录方法
     *
     * @param loginBody 登录信息
     * @return 结果
     */
    @PostMapping("/login")
    public AjaxResult login(@RequestBody LoginBody loginBody) {
        AjaxResult ajax = AjaxResult.success();
        // 生成令牌
        String token = loginService.login(loginBody.getUsername(), loginBody.getPassword(), loginBody.getCode(),
                loginBody.getUuid());
        ajax.put(Constants.TOKEN, token);
        return ajax;
    }

    /**
     * 获取用户信息
     *
     * @return 用户信息
     */
    @GetMapping("getInfo")
    public AjaxResult getInfo() {
        SysUser user = SecurityUtils.getLoginUser().getUser();
        // 角色集合
        Set<String> roles = permissionService.getRolePermission(user);
        // 权限集合
        Set<String> permissions = permissionService.getMenuPermission(user);
        AjaxResult ajax = AjaxResult.success();
        ajax.put("user", user);
        ajax.put("roles", roles);
        ajax.put("permissions", permissions);
        return ajax;
    }

    /**
     * 获取路由信息
     *
     * @return 路由信息
     */
    @GetMapping("getRouters")
    public AjaxResult getRouters() {
        Long userId = SecurityUtils.getUserId();
        List<SysMenu> menus = menuService.selectMenuTreeByUserId(userId);
        return AjaxResult.success(menuService.buildMenus(menus));
    }
}
